Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 185
Filter
1.
Rev. Asoc. Odontol. Argent ; 109(1): 3-8, ene.-abr. 2021. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1255177

ABSTRACT

Objetivo: Comparar clínicamente el comportamiento, el tiempo operatorio requerido, el costo y la dificultad de diferentes técnicas de restauración en piezas primarias, empleando ionómero vítreo fotoactivado (IVF) polvo/líquido, con y sin uso de acondicionamiento dentinario, y en cápsulas, con acondicionamiento. Materiales y métodos: El diseño de este estudio fue experimental y comparativo. Se realizaron, en 18 pacientes de 7±2 años, 33 restauraciones con IVF de una o más piezas primarias vitales con lesiones amelodentinarias en 1 o 2 superficies. Según su día de concurrencia a la Cátedra de Odontología Integral Niños, se empleó: A) IVF polvo/líquido, con acondicionamiento (3M™ VitremerTM); B) IVF polvo/líquido, sin acondicionamiento (3M™ VitremerTM); y C) IVF en cápsulas, con acondicionamiento (Riva Light Cure). Las restauraciones fueron evaluadas clínicamente al inicio y a los 12 meses según los siguientes criterios: pérdida total, pérdida total con caries, requerimiento de reemplazo por pérdida parcial, requerimiento de reemplazo por caries, aceptable con deterioro, en condiciones. El grado de dificultad se analizó utilizando una planilla diseñada para tal fin. El tiempo operatorio requerido se midió sin considerar el tiempo de inserción. Resultados: El tiempo operatorio requerido fue de 2 minutos, 15 segundos en A; 1 minuto, 25 segundos en B; y 1 minuto, 10 segundos en C, sin considerar el tiempo de inserción. El costo fue 61,11% mayor para C. La dificultad fue de 3,2±0,6 para A y B, y de 1,5±0,7 para C (ANOVA; P<0,001). El comportamiento clínico no registró diferencias significativas entre los grupos (Fisher; P=0,339). Conclusión: Los ionómeros de restauración fotoactivados encapsulados utilizados en este estudio presentaron menor dificultad de manipulación, mayor costo y similar comportamiento clínico a un año que las presentaciones polvo-líquido, con o sin uso de acondicionamiento previo en piezas primarias (AU)


Aim: To assess the clinical performance, operative time required, cost and technical difficulties of different restorative techniques in primary teeth, using light cured glass ionomers (LCG), powder/liquid, with and without dentin conditioning and light cured glass ionomer in capsules with conditioning. Materials and methods: The design of this study was experimental and comparative. 33 restorations with LCG were performed in 18 patients, 7 ± 2-years-old, in one or more vital primary teeth with carious lesions involving one or more tooth surfaces. Patients were assigned to one of the three groups according to the day of the week in which they attended to the Pediatric Department of the Dental School: A) LCG powder/liquid, with conditioning (3M™ VitremerTM); B) LCG powder/liquid without conditioning (3M™ VitremerTM); and C) LCG in capsules with conditioning (Riva Light Cure). The restorations were clinically evaluated at baseline and after 12 months according to the following criteria: complete loss of the restoration, complete loss with caries, need of replacement because of partial loss, need of replacement because of caries, good condition with some wear and good condition. Technical difficulties were analyzed using a data sheet designed for that purpose. The operative time required was evaluated without considering the insertion time. Results: Time operative time required was 2 minutes 15 seconds in A, 1 minute 25 seconds in B and 1 minute 10 seconds in C. Cost was 61.11% higher for C. Difficulty was 3.2±0.6 for A and B and 1.5±0.7 for C (ANOVA; P<0.001). No significant differences were observed among the three groups in relation to the clinical performance (Fisher; P=0.339). Conclusions: In these 12 months, study in primary teeth, the light cured glass ionomers used dispensed in capsules showed to be the easiest to handle, had higher cost and similar clinical performance than the powder liquid presentations with and without dentin conditioner (AU)


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Tooth, Deciduous , Dentin-Bonding Agents , Dental Care for Children/methods , Dental Restoration, Permanent/methods , Glass Ionomer Cements/therapeutic use , Argentina , Schools, Dental , Statistical Analysis , Prospective Studies , Analysis of Variance , Clinical Trial , Costs and Cost Analysis , Light-Curing of Dental Adhesives , Time-to-Treatment
2.
Braz. oral res. (Online) ; 33: e125, 2019. tab, graf
Article in English | LILACS, BBO | ID: biblio-1100928

ABSTRACT

Abstract Atraumatic Restorative Treatment (ART) is one of the strategies used to control dental caries; it involves hand instruments for removal of carious tissue, and restorations using high-viscosity Glass Ionomer Cement (GIC). The present controlled clinical trial aimed to evaluate the performance of low-cost GIC indicated for ART in primary teeth, compared with high-viscosity GIC, after one year of follow-up. Two-to six-year-old children with dentin caries lesions on one or two surfaces of anterior and posterior teeth were selected. The children were randomly assigned to 2 groups according to the restorative material used: G1 (control) - Ketac Molar®; G2 (experimental) - Vitro Molar®. Treatments were performed in a school setting, following the guidelines of the ART. A total of 728 restorations were performed in 243 children. Descriptive analysis and Poisson regression were applied, with a significance level of p < 0.05. After 12 months, 559 (76.8%) restorations were re-evaluated. The success rate was evaluated by the prevalence ratio (PR), associated with restorations performed in primary second molars (PR = 1.21; 95%CI = 1.03-1.42), and with small (PR = 1.35; 95%CI = 1.14-1.60) or medium cavities (PR = 1.29; 95%CI = 1.08-1.55), using Ketac Molar® material (PR= 1.07; 95%CI = 1.01-1.15), considering p < 0.05. Small or medium restorations in primary second molars performed with high-viscosity GIC (Ketac Molar®) were more successful than restorations performed with low-cost GIC indicated for ART.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Dental Caries/therapy , Dental Atraumatic Restorative Treatment/methods , Glass Ionomer Cements/chemistry , Time Factors , Tooth, Deciduous , Viscosity , Materials Testing , Poisson Distribution , DMF Index , Treatment Outcome , Dental Restoration Failure , Dental Restoration, Permanent/methods , Glass Ionomer Cements/therapeutic use
3.
J. appl. oral sci ; 27: e20180678, 2019. tab, graf
Article in English | LILACS, BBO | ID: biblio-1040230

ABSTRACT

Abstract Bulk-fill restorative materials such as bulk-fill composite resins and high viscous glass ionomer cements have become very popular materials in operative dentistry because their application is easy and time-saving. Objectives: The aim of this clinical study was to evaluate the clinical performance of a highly viscous reinforced glass ionomer material, a bulk-fill composite resin and a micro hybrid composite resin in Class II restorations. Methodology: In total, 109 Class II restorations were performed in 54 patients using three different restorative materials: Charisma Smart Composite (CSC); Filtek Bulk Fill Posterior Restorative (FBF); Equia Forte Fil (EF). Single Bond Universal adhesive (3M ESPE, Germany) was used with composite resin restorations. The restorations were evaluated using modified USPHS criteria in terms of retention, color match, marginal discoloration, anatomic form, contact point, marginal adaptation, secondary caries, postoperative sensitivity and surface texture. The data were analyzed using Chi-Square, Fischer's and McNemar's tests. Results: At the end of one year, 103 restorations were followed up. No changes were observed during the first 6 months. At the end of one year, there were small changes in composite restorations (FBF and CSC) but no statistically significant difference was observed between the clinical performances of these materials for all criteria (p>0.05). However, there was a statistically significant difference between EF, FBF and CSC groups in all parameters except marginal discoloration, secondary caries and postoperative sensitivity in one-year evaluation (p<0.05). Conclusion: Bulk-fill composite resins and conventional composite resins showed more successful clinical performance than highly viscous reinforced glass ionomers in Class II cavities.


Subject(s)
Humans , Male , Female , Adult , Composite Resins/therapeutic use , Dental Restoration, Permanent/methods , Glass Ionomer Cements/therapeutic use , Prospective Studies , Reproducibility of Results , Treatment Outcome , Bisphenol A-Glycidyl Methacrylate/therapeutic use , Sex Distribution , Dental Marginal Adaptation , Dental Caries/therapy
4.
Odovtos (En línea) ; 20(3): 61-69, Sep.-Dec. 2018. tab
Article in Spanish | LILACS, BBO | ID: biblio-1091460

ABSTRACT

RESUMEN El objetivo de este estudio fue evaluar la resistencia a la compresión de un cemento de ionómero de vidrio (GIC) bajo la influencia de la protección del barniz y alimentos. Ochenta muestras cilíndricas de GIC fueron realizadas y se distribuyeron en cuatro grupos (G1, G2, G3, G4) de acuerdo con el alimento. Cada grupo se sub-dividió además en A y B, de acuerdo con la presencia o ausencia de protección de barniz. Las ocho muestras de cada subgrupo se almacenaron en agua destilada durante 30 días y recibieron los siguientes tratamientos durante 14 días: G2A: protección del barniz e inmersión en gaseosas, G2B: sin barniz e inmersión en gaseosas, G3A: protección del barniz e inmersión en jugo de naranja, G3B: sin protección de barniz e inmersión en jugo de naranja, G4A: protección de barniz e inmersión en yogurt, G4B: sin protección de barniz e inmersión en yogur. El procedimiento de inmersión se realizó tres veces al día, durante 15 minutos por 14 días. Las muestras del Subgrupo G1A (con barniz) y G1B (sin barniz) se usaron como controles y se almacenaron en agua destilada. Las muestras se sometieron a una prueba de resistencia a la compresión después del período de inmersión. Los resultados se analizaron usando ANOVA 2, prueba de Tukey (5%) y T de Student (5%). No hubo diferencias significativas entre los subgrupos, a excepción del subgrupo con protección de barniz e inmersión en jugo de naranja, que mostró una resistencia a la compresión GIC reducida.


ABSTRACT The objective of this study was to evaluate the compressive strength of a glass ionomer cement (GIC) under the influence of varnish protection and dietary fluids. Eighty cylindrical test specimens were made from GIC and distributed into four groups (G1, G2, G3, G4) according to the dietary fluid. Each group was further divided into subgroups A and B according to the presence or absence of varnish protection. The eight subgroup samples were stored in distilled water for 30 days and received the following treatments for 14 days: G2A: varnish protection and immersion in soft drink, G2B: no varnish protection and immersion in soft drink, G3A: varnish protection and immersion in orange juice, G3B: no varnish protection and immersion in orange juice, G4A: varnish protection and immersion in yogurt, G4B: no varnish protection and immersion in yogurt. The immersion procedure was performed three times a day, for 15 minutes at a time, for a total of 14 days. The samples from subgroups G1A (with varnish) and G1B (without varnish) were used as controls and stored in distilled water only for 30 days. The samples were submitted to a compressive strength test after the immersion period. The results were analyzed using the ANOVA 2, Tukey test (5%) and Student's t-test (5%). There were no significant differences between the subgroups, except for the subgroup with varnish protection and immersion in orange juice, which showed reduced GIC compressive strength.


Subject(s)
Tooth Erosion , Dental Cavity Lining/adverse effects , Food/adverse effects , Glass Ionomer Cements/therapeutic use , Fractures, Compression
5.
Dental press j. orthod. (Impr.) ; 23(5): 58-64, Sept.-Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-975022

ABSTRACT

Abstract Introduction: The number of patients who seek orthodontic treatment that may have a history of tooth bleaching is increasing over the time. Bleaching may influence the decrease of the bond strength of orthodontic brackets. Objective: To determine and prove the effect of mangosteen peel (MP) extract to reverse the reduced shear bond strength (SBS) of orthodontic brackets after bleaching. Methods: A total of 150 maxillary first premolar teeth were randomly divided into 6 experimental groups as follow (n=25): negative-control (N: no bleaching), positive-control (P: bleaching + no treatment), and the treatment groups (bleaching + 10% sodium ascorbate (SA), 10% (MP-10), 20% (MP-20) and 40% (MP-40) MP extract gel). After treatment, the brackets were bonded with the resin-modified glass ionomer cement, SBS testing was performed using universal testing machine, and the adhesive remnant index (ARI) was examined using stereoscopic microscope after debonding. The SBS data were analyzed by analysis of variance (Anova) and the Tukey test. For the ARI, the Kruskal-Wallis test was performed. Result: There was significant SBS difference (p< 0.001) between various groups. The group without bleaching showed significantly higher SBS (8.19 ± 2.26 MPa) compared to others, while SBS in the group treated with 40% MP gel was significantly higher (7.93 ± 1.92 MPa) than other groups treated with antioxidants. The failure of orthodontic brackets bonded after bleaching and treatment using MP extract occurred at the enamel-adhesive interface. Conclusion: The application of MP extract as an antioxidant after bleaching was effective in reversing the reduced shear bond strength of orthodontic brackets after bleaching.


Resumo Introdução: o número de pacientes que procuram o tratamento ortodôntico e têm histórico de clareamento dentário tem aumentado. O clareamento pode levar à diminuição da resistência adesiva dos braquetes ortodônticos. Objetivos: comprovar a efetividade do extrato de casca de mangostão (CM) em reverter a diminuição da resistência ao cisalhamento de braquetes ortodônticos colados após o clareamento. Métodos: 150 primeiros pré-molares superiores foram aleatoriamente divididos em seis grupos experimentais (n= 25): controle negativo (grupo N, sem clareamento), controle positivo (grupo P, clareamento + sem tratamento) e os grupos com tratamento (clareamento + ascorbato de sódio a 10% [grupo AS], gel de extrato de CM a 10% [grupo CM-10], a 20% [grupo CM-20] e a 40% [grupo CM-40]). Após o tratamento, os braquetes foram colados com cimento de ionômero de vidro modificado por resina e, depois, fez-se o teste de resistência ao cisalhamento (SBS) em uma máquina universal de ensaios. Após a descolagem dos braquetes, verificou-se o índice de adesivo remanescente (ARI), com o uso de um microscópio estereoscópico. Os dados da SBS foram submetidos a uma análise de variância (ANOVA) e ao teste de Tukey. Para o ARI, foi utilizado o teste de Kruskal-Wallis. Resultados: houve diferença significativa na SBS (p< 0,001) entre os diferentes grupos. O grupo sem clareamento mostrou resistência ao cisalhamento significativamente maior (8,19 ± 2,26 MPa) do que os outros grupos, enquanto a resistência ao cisalhamento do grupo tratado com o gel de extrato de CM a 40% foi significativamente maior (7,93 ± 1,92 MPa) do que nos outros grupos tratados com antioxidantes. A falha na colagem dos braquetes ortodônticos após o clareamento e tratamento com o extrato de CM ocorreu na interface adesivo/esmalte. Conclusão: a aplicação do extrato de CM como agente antioxidante foi efetiva em reverter a diminuição, que ocorre após o clareamento dentário, na resistência ao cisalhamento da colagem de braquetes ortodônticos.


Subject(s)
Humans , Tooth Bleaching/adverse effects , Plant Extracts/adverse effects , Orthodontic Brackets , Garcinia mangostana/adverse effects , Shear Strength/drug effects , Fruit/adverse effects , Antioxidants/adverse effects , Dental Bonding , Dental Stress Analysis , Glass Ionomer Cements/therapeutic use
6.
J. appl. oral sci ; 26: e20170129, 2018. tab, graf
Article in English | LILACS, BBO | ID: biblio-893687

ABSTRACT

Abstract Objective This prospective, randomized, split-mouth clinical trial evaluated the clinical performance of conventional glass ionomer cement (GIC; Riva Self-Cure, SDI), supplied in capsules or in powder/liquid kits and placed in Class I cavities in permanent molars by the Atraumatic Restorative Treatment (ART) approach. Material and Methods A total of 80 restorations were randomly placed in 40 patients aged 11-15 years. Each patient received one restoration with each type of GIC. The restorations were evaluated after periods of 15 days (baseline), 6 months, and 1 year, according to ART criteria. Wilcoxon matched pairs, multivariate logistic regression, and Gehan-Wilcoxon tests were used for statistical analysis. Results Patients were evaluated after 15 days (n=40), 6 months (n=34), and 1 year (n=29). Encapsulated GICs showed significantly superior clinical performance compared with hand-mixed GICs at baseline (p=0.017), 6 months (p=0.001), and 1 year (p=0.026). For hand-mixed GIC, a statistically significant difference was only observed over the period of baseline to 1 year (p=0.001). Encapsulated GIC presented statistically significant differences for the following periods: 6 months to 1 year (p=0.028) and baseline to 1 year (p=0.002). Encapsulated GIC presented superior cumulative survival rate than hand-mixed GIC over one year. Importantly, both GICs exhibited decreased survival over time. Conclusions Encapsulated GIC promoted better ART performance, with an annual failure rate of 24%; in contrast, hand-mixed GIC demonstrated a failure rate of 42%.


Subject(s)
Humans , Male , Female , Child , Adolescent , Dental Restoration, Permanent/methods , Dental Atraumatic Restorative Treatment/methods , Glass Ionomer Cements/therapeutic use , Time Factors , Logistic Models , Multivariate Analysis , Prospective Studies , Reproducibility of Results , Follow-Up Studies , Treatment Outcome , Statistics, Nonparametric , Dental Restoration Failure , Glass Ionomer Cements/chemistry
7.
Arq. odontol ; 54: 1-9, jan.-dez. 2018. ilus, tab
Article in Portuguese | LILACS, BBO | ID: biblio-967624

ABSTRACT

Resumo: Objetivou-se analisar aspectos referentes ao emprego da Técnica de Restauração Atraumática (TRA) nas atividades dos Cirurgiões-Dentistas (CDs) da Atenção Básica à Saúde (ABS) do Recife, no Distrito Sanitário IV, planejadas para o controle e tratamento da cárie dentária. Promoveu-se uma caracterização do perfil profissional e sobre aspectos relacionados ao emprego da técnica. Tratou-se de um estudo observacional de caráter descritivo. A amostra foi o universo dos CDs (23), que estavam em exercício profissional em 23 unidades de saúde do Distrito Sanitário IV, no primeiro semestre de 2017. Para a coleta de dados foi elaborado um questionário estruturado submetido à validação e foi aplicado face a face. A análise de dados realizou cálculos de estatística descritiva. Foram calculadas a distribuição de frequência absoluta e relativa das variáveis estudadas. Apenas dois dentistas não foram entrevistados por estarem afastados do trabalho, isto significou em uma perda de 8,69%. Prevaleceu entre os entrevistados a idade de 41 a 57 anos (52,83%); e o sexo feminino (80,95%); 80,95% ingressaram na ABS por concurso; 90,48% possuíam pós-graduação, sendo 80,95% na especialidade Saúde da Família. A maioria afirmou utilizar a TRA e que a ABS recomenda o uso (85,75%). A técnica era utilizada para restaurações provisórias e definitivas (61,11%) e quase 50% dos entrevistados relataram que a qualidade do produto interferia na execução, duração e adesão das restaurações. Os CDs indicaram a TRA para diferentes idades e condições de vida, onde prevaleceu o uso para crianças (42,86%) e gestantes (42,86%). A grande maioria dos CDs se declarou habilitado, mas com necessidade de capacitação (95,24%). Conclui-se que a TRA é indicada e está incorporada às práticas de cuidados da maioria dos entrevistados, contudo investimentos em educação permanente dos profissionais e provimento de material recomendado para o uso eficaz da técnica devem ser planejados.


Aim: This study aimed to assess the incorporation of the Atraumatic Restoration Technique (ART) in the planned activities for dental caries control and treatment performed by dentists in public healthcare services in Sanitary District IV of Recife, Pernambuco, Brazil. Methods: The professional profile of dentists and aspects related to the use of ART was investigated. This is an observational and descriptive study. The sample (23) consisted of a universe of dentists of Sanitary District IV in the first half of 2017. Data was collected through a semi-structured questionnaire that was validated face to face. Statistical analysis was performed using descriptive statistics calculations. Results: Only two dentists were not interviewed, because they were away from work, resulting in a drop out sample of 8.69%. Most of the participants were between 41 to 57 years of age (52.83%), female (80.95%), while 80.95% entered in the public service by a selective process; 90.48% had a postgraduate degree with a specialization in family health (80.95%). The majority claimed to use ART and its recommendation in the public health service (85.75%). The technique was used for provisional and definitive restorations (61.11%), and almost 50% of the respondents reported that the quality of the dental material interfered in the execution, longevity, and adhesion of the restorations. The respondents recommended ART for different ages and life conditions, mainly in children (42.86%) and pregnant women (42.86%). The great majority of dentists claimed to be qualified but needed training (95.24%). Conclusion: It was concluded that ART was recommended and incorporated in the dental care practices of most of the interviewed dentists, highlighting the need for investments in ongoing training of dental professionals in public healthcare services and the provision of recommended materials for the effective use of ART


Subject(s)
Primary Health Care , Health Centers , Oral Health , Dental Caries , Dentists , Dental Atraumatic Restorative Treatment , Dental Atraumatic Restorative Treatment/instrumentation , Glass Ionomer Cements/therapeutic use , Surveys and Questionnaires
8.
Rev. ADM ; 74(5): 261-268, sept.-oct. 2017. tab, ilus
Article in Spanish | LILACS | ID: biblio-973046

ABSTRACT

El síndrome nefrótico es la glomerulopatía que se presenta con mayor frecuencia a nivel mundial. La historia natural de la enfermedad, laevolución, la histología renal y la respuesta al tratamiento, va desde la remisión hasta el trasplante renal. Los pacientes con nefropatía presentan alteraciones estomatológicas propias de la enfermedad y secundariasal tratamiento. Los niños con enfermedad renal crónica presentan doscondiciones orales importantes: alta incidencia de anomalías dentarias(hipoplasia del esmalte, retraso de erupción, calcificaciones pulpares) ybaja actividad de caries. Objetivo: Describir la técnica de restauración dental a base de ionómero mediante un caso clínico de un paciente con nefropatía e hipoplasia del esmalte. Conclusión: El uso de ionómero devidrio como obturación semipermanente en pacientes con hipoplasia del esmalte es una eficaz alternativa de tratamiento cuando no se pueden explotar opciones como sistemas adhesivos, coronas de acero cromo o coronas para dientes permanentes.


Nephrotic syndrome is the glomerulopathy which occur mostfrequently in the world. The natural history of disease, evolution, renalhistology and response to treatment, ranging from referral to renaltransplantation. Patients with kidney disease have own stomatology alterations and secondary alterations related to treatment. Children with chronic renal failure have two oral conditions of interest: high incidence of dental anomalies (enamel hypoplasia, delayed eruption,pulp calcifications) and low caries activity. Objective: To describe the technique ionomer dental restoration by a clinical case of a patientwith nephropathy and enamel hypoplasia. Conclusion: The use of glass ionomer as semi-shutter in patients with enamel hypoplasia isan effective alternative of treatment when cannot be exploited options such as adhesive systems, steel crowns or crowns for permanent teeth.


Subject(s)
Male , Humans , Adolescent , Nephrotic Syndrome/diagnosis , Nephrotic Syndrome/pathology , Nephrotic Syndrome/therapy , Dental Enamel Hypoplasia/therapy , Dental Care for Chronically Ill , Glass Ionomer Cements/therapeutic use , Nephrotic Syndrome/epidemiology , Dental Restoration, Permanent/methods
9.
Braz. oral res. (Online) ; 31: e88, 2017. tab, graf
Article in English | LILACS | ID: biblio-952077

ABSTRACT

Abstract Good survival rates for single-surface Atraumatic Restorative Treatment (ART) restorations have been reported, while multi-surface ART restorations have not shown similar results. The aim of this study was to evaluate the survival rate of occluso-proximal ART restorations using two different filling materials: Ketac Molar EasyMix (3M ESPE) and Vitro Molar (DFL). A total of 117 primary molars with occluso-proximal caries lesions were selected in 4 to 8 years old children in Barueri city, Brazil. Only one tooth was selected per child. The subjetcs were randomly allocated in two groups according to the filling material. All treatments were performed following the ART premises and all restorations were evaluated after 2, 6 and 12 months. Restoration survival was evaluated using Kaplan-Meier survival analysis and Log-rank test, while Cox regression analysis was used for testing association with clinical factors (α = 5%). There was no difference in survival rate between the materials tested, (HR = 1.60, CI = 0.98-2.62, p = 0.058). The overall survival rate of restorations was 42.74% and the survival rate per group was Ketac Molar = 50,8% and Vitro Molar G2 = 34.5%). Cox regression test showed no association between the analyzed clinical variables and the success of the restorations. After 12 months evaluation, no difference in the survival rate of ART occluso-proximal restorations was found between tested materials.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Dental Atraumatic Restorative Treatment/methods , Glass Ionomer Cements/therapeutic use , Time Factors , Materials Testing , Proportional Hazards Models , Treatment Outcome , Dental Restoration Failure , Dental Restoration, Permanent/methods , Kaplan-Meier Estimate
10.
Braz. oral res. (Online) ; 31: e101, 2017. tab, graf
Article in English | LILACS | ID: biblio-952124

ABSTRACT

Abstract: This study aimed to systematically review the literature to address the question regarding the influence of different materials in the clinical and radiographic success of indirect pulp treatment in primary teeth. A literature search was carried out for articles published prior to January 2017 in PubMed/MEDLINE, CENTRAL, Scopus, TRIP and ClinicalTrials databases; relevant articles included randomized clinical trials that compared materials used for indirect pulp treatment in primary teeth. Two reviewers independently selected the studies and extracted the data. The effects of each material on the outcome (clinical and radiographic failures) were analyzed using a mixed treatment comparisons meta-analysis. The ranking of treatments according to their probability of being the best choice was also calculated. From 1,088 potentially eligible studies, 11 were selected for full-text analysis, and 4 were included in the meta-analysis. In all papers, calcium hydroxide liner was used as the control group versus an adhesive system, resin-modified glass ionomer cement or placebo. The follow-up period ranged from 24 to 48 months, with dropout rates of 0-25.7%. The material type did not significantly affect the risk of failure of the indirect pulp treatment. However, calcium hydroxide presented a higher probability of failure. In conclusion, there is no scientific evidence showing the superiority of any material used for indirect pulp treatment in primary teeth.


Subject(s)
Humans , Tooth, Deciduous/drug effects , Calcium Hydroxide/therapeutic use , Dental Pulp/drug effects , Dental Pulp Capping/methods , Glass Ionomer Cements/therapeutic use , Gutta-Percha/therapeutic use , Tooth, Deciduous/diagnostic imaging , Radiography, Dental , Treatment Outcome , Publication Bias , Dental Caries/therapy
11.
Bauru; s.n; 2017. 183 p. ilus, tab, graf.
Thesis in Portuguese | LILACS, BBO | ID: biblio-885088

ABSTRACT

Este estudo avaliou a efetividade de restaurações de classe II por meio da técnica do Tratamento Restaurador Atraumático (ART), com retenções adicionais nas caixas proximais, em dentes permanentes, usando cimento de ionômero de vidro (CIV) de alta viscosidade, em comparação com restaurações convencionais de resina composta. Um exame epidemiológico foi realizado em uma população maior e representativa dos participantes da pesquisa. Cento e trinta e três participantes, de 8 a 28 anos, com boa saúde geral com uma a duas cavidades de classe II em dentes permanentes sem comprometimento pulpar e dor de dente foram incluídos neste estudo, com aprovação pelo Comitê de Ética sob o número: CAAE: 24012913.0.1001.5417. Foram feitas setenta e sete restaurações com cada material restaurador (Equia Fil-GC Corporation e Z350-3M). As restaurações foram avaliadas aos 6, 12 e 24 meses pelos critérios do ART e do Serviço de Saúde Pública dos Estados Unidos (USPHS) modificado. Correlação de Spearman e Regressão Linear Múltipla foram realizados entre as variáveis dor de dente, índice de placa visível (IPV), índice de sangramento gengival (ISG) e os índices CAST (The Caries Assessment Sprectrum and Treatment) e CPOD (contagem de dentes cariados, perdidos e restaurados) dos participantes do levantamento epidemiológico por meio do programa Statistica 7.1. Quanto à efetividade restauradora, os dados foram analisados, utilizando o programa SPSS 23.0, por meio dos testes de Mann-Whitnney, Qui-quadrado, Exato de Fisher, Qui-quadrado com tendência linear e Regressão logística pelo método Enter, quando pertinentes (p<0,050). O Teste de Kaplan-Meier avaliou as taxas de sobrevida das restaurações em relação ao critério do ART e USPHS modificado. O teste de Log-Rank comparou as curvas de sobrevida. Do índice CAST (1,53; 2,17) foi possível extrair o CPOD (0,58; 1,32) o qual apresentou menor especificidade e sensibilidade no registro da cárie. As taxas de sucesso para as restaurações de resina composta foram de 100% (6 meses), 98,7% (12 meses) e 91,5% (24 meses) para ambos os critérios de avaliação e para as restaurações de ART foram as mesmas para 6 meses (98,7%) e 12 meses (95,8%) e para 24 meses foram de 92% quando utilizado o critério do USPHS modificado e 90,3% quando utilizado o critério do ART, não sendo observada diferença estatística (p=0,466). As variáveis sexo, localidade, idade, CPOD, IPV, ISG, dor de dente, oclusão, contato proximal, tamanho da cavidade, anestesia e cooperação do paciente não apresentaram associação estatística com as taxas de sucesso das restaurações (p>0,050). Após 24 meses, as variáveis IPV e ISG não apresentaram odds ratio (OR) estatisticamente significante para as restaurações de ART (p>0,050). As restaurações de ART apresentaram uma sobrevida inferior pelo critério do ART (83,7%) quando comparado à sobrevida pelo critério do USPHS modificado (87,8%), após 24 meses (p=0,051). A sobrevida das restaurações de resina composta foi de 90,7% para ambos os critérios de avaliação. Conclui-se que não há diferença na taxa de sucesso de restaurações de classe II de ART com CIV de alta viscosidade, em dentes permanentes, com sulcos de retenção proximais, em comparação com restaurações de classe II de resina composta, após 24 meses.(AU)


This study evaluated the effectiveness of Class II restorations through the Atraumatic Restorative Treatment (ART) technique, with additional retentions in the proximal boxes, in permanent teeth, using high viscosity glass ionomer cement (HVGIC), as compared to restorations of composite resin. An epidemiological examination was conducted in a larger and representative population of the participants of study. One hundred and thirty three participants, aged 8 to 28 years, with good general health with 1 to 2 class II cavities in permanent teeth without pulp involvement and tooth pain were included in this study, with was approved by the Ethics Committee under the number: CAAE: 24012913.0.1001.5417. Seventy-seven restorations were made with each restorative material (Equia Fil-GC Corporation and Z350-3M). Restorations were evaluated at 6, 12, and 24 months by the criteria of ART and the modified United States Public Health Service (USPHS). Spearman Correlation and Multiple Linear Regression were performed between the variables tooth pain, visible plaque index (VPI), gingival bleeding index (GBI) and the CAST (The Caries Assessment Sprectrum and Treatment) and DMFT (Decayed, Missing and Filled teeth) obtained at the epidemiological survey using the Statistica program 7.1. As for restorative effectiveness, data were analyzed using the Mann-Whitnney, Chi-square, Fisher's Exact, Chi-square tests with linear trend and Logistic Regression by Enter method, where relevant (p<0.050). The Kaplan-Meier test evaluated the survival rates of the restorations in relation to the ART and modified USPHS criteria. The Log-Rank test compared the survival curves. From the CAST index (1.53; 2.17) it was possible to extract the DMFT (0.58; 1.32) which presented lower specificity and sensitivity in caries detection. The success rates for composite resin restorations were 100% (6 months), 98.7% (12 months) and 91.5% (24 months) for both assessment criteria and for ART restorations were the same for 6 months (98.7%) and 12 months (95.8%) and for 24 months were 92% when using the criteria of modified USPHS and 90.3% when using the criteria of ART, and no statistical difference was observed (p=0.466). The variables gender, locality, age, DMFT, VPI, GBI, toothache, occlusion, proximal contact, cavity size, anesthesia and cooperation of the participant did not present a statistical association with the success rates of the restorations (p>0.050). After 24 months, the VPI and GBI variables did not present a statistically significant odds ratio (OR) for ART restorations (p>0.050). ART restorations presented a lower survival rate by the criteria of ART (83.7%) when compared to the criteria of USPHS modified (87.8%), after 24 months (p=0.051). The survival of composite resin restorations was 90.7% for both evaluation criteria. It was concluded that there is no difference in the success rate of class II restorations of ART with HVGIC, in permanent teeth, with proximal retention grooves, compared to class II resin composite restorations, after 24 months.(AU)


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Composite Resins/therapeutic use , Dental Atraumatic Restorative Treatment/methods , Dental Caries/therapy , Dental Restoration, Permanent/methods , Glass Ionomer Cements/therapeutic use , Brazil/epidemiology , Dental Caries/epidemiology , Dentition, Permanent , Logistic Models , Reproducibility of Results , Statistics, Nonparametric , Survival Analysis , Time Factors , Treatment Outcome
12.
Bauru; s.n; 2017. 112 p. ilus, tab, graf.
Thesis in Portuguese | LILACS, BBO | ID: biblio-879751

ABSTRACT

O tratamento restaurador atraumático constitui-se numa abordagem de cuidados minimamente invasivos que objetivam a prevenção e interrupção da progressão da cárie dentária. Não existe na literatura estudo clínico randomizado em dentes decíduos comparando restaurações de classe II de ART, com e sem retenções adicionais. O objetivo deste trabalho foi avaliar o efeito de sulcos de retenção proximal sobre as taxas de sobrevida das restaurações classe II de ART em dentes decíduos, usando cimento de ionômero de vidro de alta viscosidade e alta resistência flexural. Foram incluídas 183 crianças com idade entre 4 a 7 anos, com boa saúde geral, 1 a 4 cavidades de classe II em molares decíduos sem envolvimento pulpar ou dor de dente. Dessas crianças, 300 dentes foram randomizados e distribuídos em dois grupos, conforme o índice de cárie da criança e o tamanho da cavidade a ser restaurada. Os grupos foram: controle restaurações de ART classe II convencionais (Grupo 1, n=150) e teste restaurações de ART classe II contendo sulcos de retenção proximais (Grupo 2, n=150). Cada um dos grupos seguiu procedimentos clínicos padronizados. No grupo teste as retenções foram realizadas com colher de dentina modificada no ângulo gengivovestibular/ lingual até 0,5 mm da junção amelo-dentinária da margem oclusal. Após 6 e 12 meses 130 restaurações do Grupo 1 e 110 restaurações do Grupo 2 foram examinadas de forma cega utilizando os critérios do ART Frencken adaptado e do USPHS modificado. Para a taxa de sobrevida das restaurações foi utilizado o teste de Kaplan-Meier (p<0,05). Não houve diferença significativa entre os grupos (p=0,70) utilizando os critérios do ART, sendo que as taxas de sobrevida encontradas para ambos os grupos foram superiores a 90%. O mesmo resultado foi observado em todos os critérios (cor, descoloração marginal, recidiva de cárie, forma anatômica, integridade marginal e textura superficial) USPHS (p>0,05). Os principais motivos de falhas das restaurações foram perda total ou parcial da restauração (84%), seguido de inflamação pulpar (16%). Conclui-se que as restaurações classe II de ART com sulcos de retenção proximal apresentaram taxa de sobrevida semelhantes às restaurações sem retenção após 6 e 12 meses.(AU)


The atraumatic restorative treatment is an approach of minimally invasive care that aims to prevent and interrupt the progression of dental caries. There is no randomized clinical trial in primary teeth with multiple surface ART restorations, with and without additional retentions. The aim of this study was to evaluate the effect of proximal retention grooves on the survival rates of occlusoproximal ART restorations in primary teeth using high viscosity glass ionomer cement with high flexural strength. A total of 183 children aged 4 to 7 years, with good general health, 1 to 4 occlusoproximal cavities in primary molars without pulp involvement or tooth pain were included. Of these children, three hundred teeth were randomized and alocated into two groups, according to the child's caries index and the size of the cavity to be restored. The groups were: control - conventional occlusoproximal ART restorations (Group 1, n=150) and test - occlusoproximal ART restorations containing proximal retention grooves (Group 2, n=150). The procedures of both groups followed standardized steps. In the test group the retentions were performed with a modified dentin spoon at the gingival-vestibular / lingual angle up to 0.5 mm from the amelodentin junction of the occlusal margin. After 6 and 12 months 130 restorations in Group 1 and 110 restorations in Group 2 were examined (blind) using the modified ART Frencken criteria and the modified USPHS criteria. The Kaplan-Meier test was performed for the survival rate of the restorations (p<0.05). There was no significant difference between groups (p=0.70) using the ART criteria, and the survival rates found for both groups were greater than 90%. The same results was observed for all USPHS criteria (color, marginal discoloration, secondary decay, anatomical form, marginal integrity and surface texture) (p>0.05). The main reasons for restorations failure were total or partial loss of restoration (84%), followed by pulpal inflammation (16%). It was concluded that multiple surface ART restorations with proximal retention grooves presented similar survival rates to non-grooves restorations after 6 and 12 months.(AU)


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Dental Atraumatic Restorative Treatment/methods , Dental Restoration, Permanent/methods , Glass Ionomer Cements/therapeutic use , Tooth, Deciduous , Glass Ionomer Cements/chemistry , Kaplan-Meier Estimate , Statistics, Nonparametric , Time Factors , Treatment Outcome
13.
Braz. oral res. (Online) ; 31: e3, 2017. tab, graf
Article in English | LILACS | ID: biblio-839508

ABSTRACT

Abstract A randomized, double-blind, split-mouth clinical trial was performed compared the desensitizing efficacy of the resin-modified glass ionomer cement (GIC) ClinproTM XT (3M ESPE, Minnesota, USA) and the conventional GIC Vidrion R (SS White, Gloucester, UK) in a 6-month follow-up. Subjects were required to have at least two teeth with dentin hypersensitivity. Teeth were divided at random into 2 groups, one group received Clinpro XT and the other conventional GIC Vidrion R. Treatments were assessed by tactile and air blast tests using Visual Analogue Scale (VAS) at baseline, after 20 minutes, and at 7, 15, 21, 30, 90 and 180 days post-treatment. Twenty subjects (152 teeth) were included. Both tests (tactile and air blast) showed a significant reduction of dentin hypersensitivity immediately after the application of Vidrion R and Clinpro XT (20 min). VAS scores obtained along the 6-month follow-up were statistically lower when compared to initial rates (p < 0.05). Both GIC were able to reduce dentin hypersensitivity up to 6-month post-treatment period without statistically significant differences among them (p > 0.05). Both cements provided satisfactory results in long-term dental sensitivity reduction.


Subject(s)
Humans , Male , Female , Adult , Composite Resins/therapeutic use , Dentin Desensitizing Agents/therapeutic use , Dentin Sensitivity/therapy , Glass Ionomer Cements/therapeutic use , Dentin/drug effects , Double-Blind Method , Pain Measurement , Reproducibility of Results , Statistics, Nonparametric , Time Factors , Treatment Outcome , Visual Analog Scale
14.
Braz. oral res. (Online) ; 31: e35, 2017. tab, graf
Article in English | LILACS | ID: biblio-839526

ABSTRACT

Abstract The aim was to test the null-hypothesis that there is no difference in the cumulative survival rate of retained composite resin (CR) sealants and a high-viscosity glass-ionomer Atraumatic Restorative Treatment (ART) sealant in first permanent molars calculated according to the traditional and the modified retention assessment criteria over a period of 3 years. This cluster-randomized controlled clinical trial consisted of 123 schoolchildren, 6–7-years-old. At baseline, high-caries risk pits and fissures of fully erupted first permanent molars were treated with CR and ART sealants. Evaluations were performed after 0.5, 1, 2 and 3 years. Retention was scored for free-smooth surface and for each of three sections into which the occlusal surface had been divided. The modified criterion differed from the traditional in that it determined an occlusal sealant to be a failure when at least one section contained no visible sealant material. Data were analysed according to the PHREG model with frailty correction, Wald-test, ANOVA and t-test, using the Jackknife procedure. The cumulative survival rates for retained CR and ART sealants in free-smooth and occlusal surfaces for both criteria were not statistically significantly different over the 3 years. A higher percentage of retained CR sealants on occlusal surfaces was observed at longer evaluations. Cumulative survival rates were statistically significantly lower for the modified criterion in comparison to the traditional. The modified retention assessment criterion should be used in future sealant-retention studies.


Subject(s)
Humans , Male , Female , Child , Pit and Fissure Sealants/therapeutic use , Composite Resins/therapeutic use , Dental Atraumatic Restorative Treatment/methods , Glass Ionomer Cements/therapeutic use , Surface Properties , Time Factors , Viscosity , Survival Analysis , Follow-Up Studies , Treatment Outcome , Dental Prosthesis Retention , Risk Assessment , Dental Restoration Failure , Dental Caries/prevention & control , Dentin/drug effects , Molar
15.
Actas odontol ; 13(1): 16-22, jul.2016.
Article in Spanish | LILACS | ID: lil-796675

ABSTRACT

El objetivo de este caso clínico es mostrar como con una técnica restauradora directa, adhesiva y conservadora podemos resolver losproblemas de estética y salud dental generados por una mala formación parcial de del tipo hipoplasia y/o hipomineralización. En el procedimiento se procede a la eliminación exclusiva de la estructura dental afectada y una restauración directa con sistema resinosos adhesivo - Fine Etch 37 de Spirent, Corea (acido fosforico al 35%) y One Coat Bond SL (adhesivo dental disuelto en agua al 5%)-, ambos de Coltene, Suiza. Posteriormente se restaura con una resina compuesta ûcomposite- (Brilliant NG, Coltene, Suiza) con técnica de agregado incremental y se polimeriza el material con una unidad de luz LED para estos fines (Valo, Ultradent, Utah, USA). Posteriormente se procede, con piedras diamantadas de granulometría degradante (Diatech, Rotatory Instruments, Suiza), a dar la anatomía, textura y detalles necesarios, para mas tarde con discos de terminación y pulido de resinas compuestas a base de granos deóxido de aluminio (Soft Lex, 3M, USA) se da terminación a la restauración. A continuación se hace el pulido final y se realiza el alto lustre de la restauración con pasta diamantada (Prisma Gloss, Dentsply, Brasil),mejorando así el comportamiento óptico de la luz al impactar el composite y a disminuir el riesgo de atrapamiento de placa bacteriana. El protocolo consiste en eliminar el tejido afectado (esmalte) con trastorno de formación, desinfectar la zona en cuestión, preparar físico-mecßnicamente la estructura dental para la adhesión (grabado del tejido), aplicar la cadena adhesiva correspondiente, volatilizar el solvente y esparcir el adhesivo con chorro de aire libre de contaminación y polimerizarlo, así como colocar el material restaurador por capas. Se dan detalles anatómicos y se pule al alto brillo...


The objetive of this clinical case is to show how a simple, direct and adhesive procedure can help us to solve the esthetics and health problems of a hipominiralizate and a hipoplasic estruture tooth. During the therapy we eliminate with diamond instruments just de damaged tissue, desinfecte the cavity, make a level at the marginalpart of the preparation, etch the tooth it with 35% fosforic acid gel (Fine Etch 37 de Spirent, Corea) and then apply an adhesive system solved in 5% of water (One Coat Bond SL), both from Coltene, Swiss. Later on we polimerizate the bonding agent, a place the restaurative composite material (Brilliant NG, Coltene, Swiss) using incrementaltecnique. After then, with non agresive diamond rotatory instruments (Diatech, Rotatory Instruments, Swiss) we work on anatomy, texture and final polish of the restauration. The final high luster is done with diamond polish microparticulated paste (Prisma Gloss, Dentsply, Brazil)...


Subject(s)
Humans , Male , Adolescent , Dental Caries/prevention & control , Dental Enamel Hypoplasia/therapy , Acid Etching, Dental , Glass Ionomer Cements/therapeutic use , Dentition, Permanent , Dental Restoration, Permanent/methods
16.
Braz. oral res. (Online) ; 30(1): e136, 2016. tab, graf
Article in English | LILACS | ID: biblio-952048

ABSTRACT

Abstract: This split-mouth randomized clinical trial aimed to compare the survival rate of bonding and banding molar tubes in adult orthodontic patients. Eligibility criteria included adults (aged >18 years), no active caries, restorations, or fractures in the upper and lower molars. The main outcome was any type of first-time failure in molar tubes. A computer-generated randomization scheme was used in a 1:1 ratio. The survival rate was estimated for 32 adult patients, in whom a tube was bonded to a molar tooth using composite resin on one side and a band was cemented with glass ionomer onto the same tooth in the contralateral arch. A total of 59 banded and 59 bonded molars were followed up for 12 months. Blinding was not applicable. Survival analysis including Cox regression was used at p < 0.05. The survival rate of bonded molars was not statistically different from that of banded molars (log-rank test, p = 0.97). Hazard ratio (HR) was 0.72 (95%CI, 0.38-1.31). Bonded upper molars yielded a survival rate of 81.25% (26 out of 32) compared to 71.87% (23 out of 32) for banded upper molars. The survival rate was 66.66% (18 out of 27) for banded lower molars and 59.25% for bonded lower molars (16 out of 27). The HR for lower vs. upper arch was 2.16 (95%CI, 1.18-3.98). No serious problem was observed other than gingivitis associated with plaque accumulation. In contrast to previous studies in young patients, in adults, bonding orthodontic tubes to molars is similar to molar banding. However, both procedures had a high failure rate in the lower arch.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Orthodontic Appliances , Dental Bonding/methods , Molar , Time Factors , Proportional Hazards Models , Reproducibility of Results , Treatment Outcome , Orthodontic Appliance Design , Glass Ionomer Cements/therapeutic use
17.
Braz. oral res. (Online) ; 30(1): e63, 2016. tab
Article in English | LILACS | ID: biblio-951956

ABSTRACT

Abstract The aim of this study was to compare the clinical performance of root caries restorations after a six-month period using two methods, a conventional technique with rotary instruments and an atraumatic restorative technique (ART), in an institutionalized elderly population in the city of Bogotá, Colombia. Root caries represents a multifactorial, progressive, chronic lesion with softened, irregular and darkened tissue involving the radicular surface; it is highly prevalent in the elderly, especially in those who are physically or cognitively impaired. A quasi-experimental, double-blind, longitudinal study was carried out after cluster randomization of the sample. Two different experienced dentists, previously trained, performed the restorations using each technique. After six months, two new investigators performed a blind evaluation of the condition of the restorations. The results showed a significantly higher rate of success (92.9%) using the conventional technique (p < 0.03). However, we concluded that ART may have been the preferred technique in the study population because 81% of those restorations survived or were successful during the observation period.


Subject(s)
Humans , Male , Female , Aged , Aged, 80 and over , Root Caries/therapy , Dental Instruments , Dental Restoration, Permanent/instrumentation , Dental Atraumatic Restorative Treatment/methods , Double-Blind Method , Longitudinal Studies , Dental Care for Aged , Treatment Outcome , Dental Restoration Failure , Dental Restoration, Permanent/methods , Glass Ionomer Cements/therapeutic use , Middle Aged , Nursing Homes
18.
Belo Horizonte; s.n; 2016. 85 p. ilus.
Thesis in Portuguese | LILACS, BBO | ID: biblio-911651

ABSTRACT

A adaptação marginal é um dos requisitos fundamentais para a longevidade e o sucesso das restaurações. O objetivo desse estudo foi avaliar a influência do desajuste interno associado à diferentes agentes cimentantes na desadaptação marginal de coroas em resina nanocerâmica (Lava Ultimate 3M ESPE) confeccionadas pelo sistema CAD-CAM. A partir do escaneamento de um preparo de coroa total em um pré-molar, foram obtidos 36 modelos em metal. Esses foram divididos em seis grupos de acordo com o desajuste interno (70 µm ou 100 µm) e o cimento (Fosfato de zinco- SS White, Cimento de ionômero de vidro- Ketac Cem 3M/ESPE e Cimento resinoso- Relyx Ultimate 3M/ESPE). Após escaneamento de todos os modelos as coroas foram confeccionadas a partir da fresagem de blocos de resina nanocerâmica (Lava Ultimate 3M/ESPE). Com auxílio de microscópio óptico comparador (40X) foram medidas as desadaptações marginais prévia e posteriormente à cimentação, sendo considerados 8 pontos ao longo do término em todas as faces do corpo de prova. Os valores obtidos após serem submetidos aos testes two-way anova e teste t, demonstraram que as coroas confeccionadas com desajuste interno de 70 µm apresentam desadaptação marginal inferior estatisticamente significante às coroas com desajuste interno de 100 µm. Para o desajuste interno de 70 µm o grupo do cimento fosfato de zinco apresentou o menor gap marginal, sendo que este valor não foi estatisticamente diferente em relação ao grupo do Ketac Cem. Ainda com esse desajuste, o grupo do Ketac Cem não apresentou diferença estatística significante em relação ao grupo do Relyx Ultimate, no entanto esse último promoveu "gap" marginal estatisticamente maior em relação ao grupo do cimento fosfato de zinco. Para o desajuste interno de 100 µm não houve diferença estatisticamente significante no "gap" marginal entre os três cimentos avaliados. O presente estudo demonstrou através da metodologia utilizada, que a menor desadaptação marginal observada nas restaurações de Lava Ultimate, foi proveniente do desajuste interno de 70 µm. Neste grupo os cimentos de fosfato de zinco e de ionômero de vidro demonstraram melhor comportamento comparado ao cimento resinoso, embora o cimento de ionômero de vidro numericamente, mas não estatisticamente tenha apresentado resultado inferior ao do fosfato de zinco


The marginal adaptation is one of the basic requirements for the longevity and success of restorations. The aim of this study was to evaluate the influence of the internal imbalances associated with different luting agents on marginal leakage of crowns Nanoceramic resin ( Lava Ultimate 3M ESPE) made by CAD-CAM system. From the scanning of a full crown preparation in a pre molar were obtained 36 metal models. These were divided into six groups according to the internal imbalances ( 70 or 100 micrometres) and cement (SS White Zinc phosphate, glass ionomer cemet Ketac Cem 3M/ Espe and resinous cement Relyx Ultimate 3M / Espe). After scanning all models crowns were made from milling Nanoceramic resin blocks (Lava Ultimate 3M / Espe). With the aid of optical comparator microscope (40X) were measured prior marginal mismatches and after the cementation, being considered 8 points along the end in all specimen faces. The values were submitted to ANOVA two-way test and t test. Results showded that crowns made with internal imbalances of 70 uM show statistically significant lower marginal leakage to the crows with internal imbalances of 100 micrometres. For the internal imbalances 70 uM zinc phosphate cement group showed the lowest "gap" marginal, and this figure does not show a statistically significant difference compared to Ketac Cem gropu. Even with this misfit, Ketac Cem group showed no statistically significant difference in relation to Relyx Ultimate group, though the latter showed a statistically significant difference compared to zinc phosphate cement group. For the internal imbalances of 100 micrometres there was no statistically significant difference in the "gap" marginal among the three cements. This study demostrated through the methodology used, the lower marginal leakage oberved in Lava Ultimate restorations, was from the inner misfit 70 micrometers...


Subject(s)
Computer-Aided Design/statistics & numerical data , Dental Cements/therapeutic use , Dental Marginal Adaptation/classification , Dental Restoration, Permanent/trends , Glass Ionomer Cements/therapeutic use , Metal Ceramic Alloys/analysis , Resin Cements/therapeutic use , Resins, Synthetic/analysis , Zinc Phosphate Cement/therapeutic use , Dental Models/statistics & numerical data
19.
Rev. Ciênc. Plur ; 2(2): 84-98, 2016. tab
Article in Portuguese | LILACS, BBO | ID: biblio-849050

ABSTRACT

Introdução: A recessão gengival é uma condição de alta prevalência que leva a exposição radicular causando queixas estéticas e sintomáticas e cujo tratamento pode ser de difícil execução caso fatores complicadores estejam associados. Objetivo: Realizar uma revisão da literatura para discutir a influência de determinados fatores sobre os resultados dos procedimentos para recobrimento radicular. Métodos: Artigos foram selecionados nas bases de dados Pubmed, Scopus, Web of Science, Scielo e LILACS. Os critérios de escolha dos artigos foram: escritos em Inglês, Espanhol, Francês ou Português e que fossem classificados como ensaios clínicos. Resultados: A busca resultou em 20 artigos selecionados que avaliaram e discutiram sobre os possíveis fatores influenciadores como fumo (11), lesão cervical não cariosa (5), biótipo periodontal (4) e anatomia local (1). Discussão: O fumo foi o fator mais discutido na literatura cujos resultados mostram que pode interferir negativamente no tratamento cirúrgico da recessão gengival, embora pacientes fumantes possam apresentar bons resultados desde que façam um bom controle do biofilme dentário. Os artigos sobre lesão cervical não cariosa mostram que os resultados do recobrimento radicular são iguais, em curto e em longo prazo, independente da lesão cervical não cariosa estar restaurada ou não ou com qual material restaurador. Indivíduos que apresentam biótipo periodontal espesso apresentaram melhor prognóstico quanto ao recobrimento radicular. Conclusão: O tratamento da recessão gengival é complexo devido estar ligado a vários fatores relacionados ao indivíduo, desde fatores anatômicos a hábitos que o mesmo apresente. A literatura demonstra que o fumo é um dos fatores que limitam a previsibilidade do tratamento das recessões gengivais (AU).


Introduction: Gingival recession is a high prevalence condition that leads to root exposure causing aesthetic and symptomatic complaints and whose treatment can be difficult to perform when factors are associated with. Objective: To perform a literature review to discuss the influence of some factors on the results of root coverage procedures. Methods: Articles were selected in data basis Pubmed, Scopus, Web of Science, Scielo, and LILACS. The inclusion criteria were the language in English, Spanish, French, and Portuguese as well as classified as clinical trials. Results: The search resulted in twenty articles selected which was evaluated and discussed about possible influencing factors such as smoking (11), non-carious cervical lesion (5), periodontal biotype (4), and local anatomy (1). Discussion: Smoking was the most discussed factor whose results demonstrate that it can adversely affect the result of surgical treatment for gingival recession, although smokers can present good results as long as they present a good control of the biofilm. Non-carious cervical lesion articles showed that the results of root coverage are the same, in short and long follow-up, regardless of whether the noncarious cervical lesion was restored or not as well as which restorative material was used. Individuals with thick periodontal biotype have a better prognosis regarding root coverage. Conclusions: The treatment of gingival recession is complex because it is linked to several factors related to the individual, anatomical factors and patients' habits. The literature demonstrates that smoking is one of the factors that limit the predictability of treatment of gingival recessions (AU).


Subject(s)
Gingival Recession/surgery , Tobacco/adverse effects , Tooth Abrasion/complications , Tooth Erosion/complications , Treatment Outcome , Brazil , Composite Resins/therapeutic use , Glass Ionomer Cements/therapeutic use , Transplantation, Autologous/statistics & numerical data
20.
Bol. Asoc. Argent. Odontol. Niños ; 44(2): 2-7, sept.-dic. 2015. tab, graf
Article in Spanish | LILACS | ID: lil-786703

ABSTRACT

Objetivos: describir la supervivencia y estado post-1 año de restauraciones con ionómero vítreo (IV) realizadas por recurso humano preprofesional y analizar la asociación entre el estado de las mismas y variables intervinientes. Métodos: se evaluaron 129 restauraciones (en 54 escolares; edad: 6 y 7 años) con IV (Ketac Molar Easymix), realizadas por estudiantes del último año de la carrera de odontología en un programa escolar con un a técnica sistematizada basada en los criterios de la restauración atraumática. Para la evaluación, cuatro examinadores basaron sus observaciones en el criterio de Franken que establece 7 categorías: 0= presente en buenas condiciones, 1= ligero defecto marginal, 2= ligero desgaste, 3= defecto marginal >0,5 mm, 4= desgaste >0,5 mm, 5= restauración partida o parcialmente perdida y 6= no presente. Para su análisis descriptivo, fueron reagrupadas en 3 categorías en términos de necesidad de reintervención: N1 (0 y 2) no necesita reintervención, N2 (1 y 3) necesita mínima intervención y N3 (4, 5 y 6) requiere reemplazo. Se consideran variables intervinientes: dentición, extensión de la cavidad y presencia de lesiones activas de caries en la cavidad bucal post-1 año clínica. Se calcularon las distribuciones de frecuencia y se estudió asociación con la prueba de Chi cuadrado. Resultados: la tasa de supervivencia post -1 año fue de 94,6 por ciento. El estado de las restauraciones mostró asociación significativa con la presencia de actividad de caries en boca en el momento de la evaluación. Conclusiones: la tasa de supervivencia de las restauraciones con IV post-1 año realizadas por recursos humano preprofesional supervisado, fue alta. La presencia de actividad de caries en boca podría ser una variable del estado de las restauraciones


Subject(s)
Humans , Male , Female , Child , Glass Ionomer Cements/therapeutic use , Dental Restoration, Permanent/statistics & numerical data , Dental Restoration, Permanent/methods , Students, Dental , Argentina , Dental Restoration Wear , Education, Predental/methods , School Dentistry , Statistical Analysis , Teaching Care Integration Services
SELECTION OF CITATIONS
SEARCH DETAIL